10 Python Beginner Exercises With Objectives (series 2)

Exercise 1 — Temperature Converter (Celsius → Fahrenheit)

Objective: Practice arithmetic formulas and user input.

Task:
Ask the user for a temperature in Celsius and convert it to Fahrenheit.

c = float(input("Enter temperature in Celsius: "))
f = (c * 9/5) + 32
print("Fahrenheit:", f)

Exercise 2 — Maximum of Three Numbers

Objective: Use conditional statements to compare values.

Task:
Ask the user for three numbers and print the largest one.

a = float(input("Enter first number: "))
b = float(input("Enter second number: "))
c = float(input("Enter third number: "))

print("Largest number:", max(a, b, c))

Exercise 3 — Count Vowels in a Word

Objective: Work with loops, strings, and character checking.

Task:
Ask the user for a word and count how many vowels it contains.

word = input("Enter a word: ")
vowels = "aeiouAEIOU"
count = 0

for char in word:
    if char in vowels:
        count += 1

print("Vowel count:", count)

Exercise 4 — Reverse a String

Objective: Use slicing or loops to manipulate strings.

Task:
Write a program that reverses a word entered by the user.

word = input("Enter a word: ")
print("Reversed:", word[::-1])

Exercise 5 — Basic Password Strength Checker

Objective: Practice string conditions and logical operators.

Task:
Ask the user for a password and check:

if length < 6 → "Weak"
if length 6–10 → "Medium"
if length > 10 → "Strong"

password = input("Enter a password: ")

if len(password) < 6:
    print("Weak")
elif len(password) <= 10:
    print("Medium")
else:
    print("Strong")

Exercise 6 — Find the Smallest Number in a List

Objective: Work with lists and basic algorithms.

Task:
Given a list of numbers, print the smallest element.

numbers = [12, 3, 45, 7, 2, 9]
print("Smallest number:", min(numbers))

Exercise 7 — Count Down Timer

Objective: Use loops and decreasing counters.

Task:
Ask the user for a number and print a countdown to zero.

n = int(input("Enter a number: "))

for i in range(n, -1, -1):
    print(i)

Exercise 8 — Prime Number Checker

Objective: Use loops + conditions to implement logic.

Task:
Ask the user for a number and check whether it is prime.

num = int(input("Enter a number: "))

if num < 2:
    print("Not prime")
else:
    is_prime = True
    for i in range(2, int(num**0.5) + 1):
        if num % i == 0:
            is_prime = False
            break

    print("Prime" if is_prime else "Not prime")

Exercise 9 — Remove Duplicates from a List

Objective: Learn to use sets or logic to filter unique values.

Task:
Given a list with repeated values, print the list without duplicates.

numbers = [1, 2, 2, 3, 4, 4, 5]
unique = list(set(numbers))
print("Unique list:", unique)

Exercise 10 — Simple Bank Account Simulation

Objective: Combine variables, conditions, and loops.

Task:
Create a simple menu:

Deposit money
Withdraw money
Show balance
Exit

balance = 0

while True:
    print("\n1. Deposit")
    print("2. Withdraw")
    print("3. Show Balance")
    print("4. Exit")

    choice = input("Choose an option: ")

    if choice == "1":
        amount = float(input("Enter amount to deposit: "))
        balance += amount
    elif choice == "2":
        amount = float(input("Enter amount to withdraw: "))
        balance -= amount
    elif choice == "3":
        print("Balance:", balance)
    elif choice == "4":
        break
    else:
        print("Invalid option")